Search a number
-
+
120402443 = 717200349
BaseRepresentation
bin1110010110100…
…11001000001011
322101120002002202
413023103020023
5221310334233
615540350415
72661255350
oct713231013
9271502082
10120402443
1161a67157
12343a540b
131bc38165
1411dc2627
15a884be8
hex72d320b

120402443 has 4 divisors (see below), whose sum is σ = 137602800. Its totient is φ = 103202088.

The previous prime is 120402427. The next prime is 120402463. The reversal of 120402443 is 344204021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120402443 - 24 = 120402427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120402463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8600168 + ... + 8600181.

It is an arithmetic number, because the mean of its divisors is an integer number (34400700).

Almost surely, 2120402443 is an apocalyptic number.

120402443 is a deficient number, since it is larger than the sum of its proper divisors (17200357).

120402443 is an equidigital number, since it uses as much as digits as its factorization.

120402443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17200356.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 120402443 is about 10972.8047007135. The cubic root of 120402443 is about 493.7931939353.

Adding to 120402443 its reverse (344204021), we get a palindrome (464606464).

The spelling of 120402443 in words is "one hundred twenty million, four hundred two thousand, four hundred forty-three".

Divisors: 1 7 17200349 120402443